diff options
| -rw-r--r-- | drivers/usb/media/pwc/pwc-ctrl.c | 78 | ||||
| -rw-r--r-- | drivers/usb/media/pwc/pwc-if.c | 2 | ||||
| -rw-r--r-- | drivers/usb/media/pwc/pwc.h | 6 |
3 files changed, 41 insertions, 45 deletions
diff --git a/drivers/usb/media/pwc/pwc-ctrl.c b/drivers/usb/media/pwc/pwc-ctrl.c index 26aa914bc541..42352f531bc0 100644 --- a/drivers/usb/media/pwc/pwc-ctrl.c +++ b/drivers/usb/media/pwc/pwc-ctrl.c @@ -418,6 +418,44 @@ static inline int set_video_mode_Kiara(struct pwc_device *pdev, int size, int fr +static void pwc_set_image_buffer_size(struct pwc_device *pdev) +{ + int i, factor = 0, filler = 0; + + /* for PALETTE_YUV420P */ + switch(pdev->vpalette) + { + case VIDEO_PALETTE_YUV420P: + factor = 6; + filler = 128; + break; + case VIDEO_PALETTE_RAW: + factor = 6; /* can be uncompressed YUV420P */ + filler = 0; + break; + } + + /* Set sizes in bytes */ + pdev->image.size = pdev->image.x * pdev->image.y * factor / 4; + pdev->view.size = pdev->view.x * pdev->view.y * factor / 4; + + /* Align offset, or you'll get some very weird results in + YUV420 mode... x must be multiple of 4 (to get the Y's in + place), and y even (or you'll mixup U & V). This is less of a + problem for YUV420P. + */ + pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC; + pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE; + + /* Fill buffers with gray or black */ + for (i = 0; i < MAX_IMAGES; i++) { + if (pdev->image_ptr[i] != NULL) + memset(pdev->image_ptr[i], filler, pdev->view.size); + } +} + + + /** @pdev: device structure @width: viewport width @@ -475,44 +513,6 @@ int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frame } -void pwc_set_image_buffer_size(struct pwc_device *pdev) -{ - int i, factor = 0, filler = 0; - - /* for PALETTE_YUV420P */ - switch(pdev->vpalette) - { - case VIDEO_PALETTE_YUV420P: - factor = 6; - filler = 128; - break; - case VIDEO_PALETTE_RAW: - factor = 6; /* can be uncompressed YUV420P */ - filler = 0; - break; - } - - /* Set sizes in bytes */ - pdev->image.size = pdev->image.x * pdev->image.y * factor / 4; - pdev->view.size = pdev->view.x * pdev->view.y * factor / 4; - - /* Align offset, or you'll get some very weird results in - YUV420 mode... x must be multiple of 4 (to get the Y's in - place), and y even (or you'll mixup U & V). This is less of a - problem for YUV420P. - */ - pdev->offset.x = ((pdev->view.x - pdev->image.x) / 2) & 0xFFFC; - pdev->offset.y = ((pdev->view.y - pdev->image.y) / 2) & 0xFFFE; - - /* Fill buffers with gray or black */ - for (i = 0; i < MAX_IMAGES; i++) { - if (pdev->image_ptr[i] != NULL) - memset(pdev->image_ptr[i], filler, pdev->view.size); - } -} - - - /* BRIGHTNESS */ int pwc_get_brightness(struct pwc_device *pdev) @@ -949,7 +949,7 @@ int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value) return SendControlMsg(SET_STATUS_CTL, LED_FORMATTER, 2); } -int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value) +static int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value) { unsigned char buf[2]; int ret; diff --git a/drivers/usb/media/pwc/pwc-if.c b/drivers/usb/media/pwc/pwc-if.c index 100a5a4f03a3..c3c3e5a101d9 100644 --- a/drivers/usb/media/pwc/pwc-if.c +++ b/drivers/usb/media/pwc/pwc-if.c @@ -129,7 +129,7 @@ static int default_mbufs = 2; /* Default number of mmap() buffers */ int pwc_trace = TRACE_MODULE | TRACE_FLOW | TRACE_PWCX; static int power_save = 0; static int led_on = 100, led_off = 0; /* defaults to LED that is on while in use */ - int pwc_preferred_compression = 2; /* 0..3 = uncompressed..high */ +static int pwc_preferred_compression = 2; /* 0..3 = uncompressed..high */ static struct { int type; char serial_number[30]; diff --git a/drivers/usb/media/pwc/pwc.h b/drivers/usb/media/pwc/pwc.h index 53b516d29cf5..267869dab185 100644 --- a/drivers/usb/media/pwc/pwc.h +++ b/drivers/usb/media/pwc/pwc.h @@ -226,9 +226,8 @@ struct pwc_device extern "C" { #endif -/* Global variables */ +/* Global variable */ extern int pwc_trace; -extern int pwc_preferred_compression; /** functions in pwc-if.c */ int pwc_try_video_mode(struct pwc_device *pdev, int width, int height, int new_fps, int new_compression, int new_snapshot); @@ -243,8 +242,6 @@ void pwc_construct(struct pwc_device *pdev); /** Functions in pwc-ctrl.c */ /* Request a certain video mode. Returns < 0 if not possible */ extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int frames, int compression, int snapshot); -/* Calculate the number of bytes per image (not frame) */ -extern void pwc_set_image_buffer_size(struct pwc_device *pdev); /* Various controls; should be obvious. Value 0..65535, or < 0 on error */ extern int pwc_get_brightness(struct pwc_device *pdev); @@ -256,7 +253,6 @@ extern int pwc_set_gamma(struct pwc_device *pdev, int value); extern int pwc_get_saturation(struct pwc_device *pdev); extern int pwc_set_saturation(struct pwc_device *pdev, int value); extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value); -extern int pwc_get_leds(struct pwc_device *pdev, int *on_value, int *off_value); extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor); /* Power down or up the camera; not supported by all models */ |